{"paper":{"title":"Optical photometry and spectroscopy of the low-luminosity, broad-lined Ic supernova iPTF15dld","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"(10) INAF-OABrera, (11) INAF-OACapodimonte, (12) INAF-OATeramo, (13) QU Belfast, (14) Aarhus Univ., 15), (15) ICRA, (16) Weizmann Inst., 17), (17) INAF-OATorino), 2), (2) SNS, (3) INAF-OAPadova, (4) LJMU, 5), (5) MPA, (6) Yale Univ., (7) Urbino Univ., 8), (8) INFN-Florence, (9) INAF-OARoma, A. Gal-Yam (16), A. Grado (11), A. Melandri (10), A. Pastorello (3), A. Piascik (4), A. Stamerra (2, C. Baltay (6), C. Copperwheat (4), C. Inserra (13), D. Rabinowitz (6), E. Brocato (9), E. Cappellaro (3), E. Kankare (13), E. Palazzi (2), E. Pian (1, F. Getman (11), G. Greco (7, G. Raimondo (12), G. Stratta (7, I. A. Steele (4), L. Limatola (11), L. Nicastro (1), L. Pulone (9), L. Stella (9), L. Tartaglia (3), L. Tomasella (3), M. Branchesi (7, M. Della Valle (11, M. Stritzinger (14), M. Turatto (3) ((1) INAF-IASF Bologna, N. Ellman (6), P. A. Mazzali (4, P. D'Avanzo (10), S. Ascenzi (9), S. Benetti (3), S. Campana (10), S. Covino (10), S. Piranomonte (9), S. Smartt (13), S. Yang (3)","submitted_at":"2016-12-10T10:24:05Z","abstract_excerpt":"Core-collapse stripped-envelope supernova (SN) explosions reflect the diversity of physical parameters and evolutionary paths of their massive star progenitors. We have observed the type Ic SN iPTF15dld (z = 0.047), reported by the Palomar Transient Factory. Spectra were taken starting 20 rest-frame days after maximum luminosity and are affected by a young stellar population background. Broad spectral absorption lines associated with the SN are detected over the continuum, similar to those measured for broad-lined, highly energetic SNe Ic. The light curve and maximum luminosity are instead mor"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.03275","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}